Device for the purpose of singly separating threads arranged in a row.



. 0. VON MEYENBURG. DEVICE FOR THE PURPOSE OF SINGLYSEPARATIN G THREADS ARRANGED IN A ROW.

APPLICATION FILED A'PR. 22, 1910.

1997 202, Patented May 19, 1914,

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OTTO VON MEYENBURG, OE ZUBICE, SWITZERLAND.

DEVICE FOR THE PURPOSE OF SINGLY SEPARATING THREADS ARRANGED IN A BOW.

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Specification of Letters Patent.

Patented May 19, 1914:.

Application filed April 22, 1910. Serial No. 557,014.

To aZZ whom it may concern:

Be it known that I, OTTO VON MEYEN- none, engineer, citizen of Switzerland, residing at Zurich, Switzerland, have invented certain new and useful Improvements in Devices for the Purpose of Singly Separating Threads Arranged in a Row, of which the following is a specification.

This invention relates to an improvement in mechanism for successively separating individual threads from a row of such threads and may be employed in connection with a warp thread-drawingin-machine of the type disclosed by British Patent No. 3707 of February 14th, 1907.

Machines of the type referred to usually include as an essential feature thereof, a device for selecting and separating heddles, said device having oscillating, adjustable and fixed arms, which cooperate in selecting and separating a heddle at predetermined times, from the series of heddle cords and holding the series of cords separate from the one selected.

A device of the character thus briefly described forms the subject matter of my co-pending application for Letters Patent, Serial Number 557015, filed April 22nd, 1910.

Machines of the type above referred to also include a device for threading the warp threads into and through the heddle-eyes, combined with means to hold a warp thread in such position that it may be engaged by a hooked needle and drawn through the eye of the heddle which has been selected and separated from the series of heddles. A device of this kind forms the subject matter of my co-pending application for Letters Patent Serial Number 557010 filed April 22nd, 1910. The said warp thread drawingin machines are also provided with a device for successively separating individual warp threads from a row of such threads, in order that each of such threads may be drawn through the heddle eye by means of the two devices above referred to.

A thread separating mechanism, as briefly outlined in the paragraph immediately preceding, forms the subject matter of the present application, and said separating device includes driving means having a releasable coupling, a group of hooks arranged in a circle, and adapted to revolve about the center of the circle, a thread feeler adapted to act on said coupling and means for moving said several members in a rectilinear path against the row of threads to be separated. Said members are so arranged that when moved slowly against the row of threads, and the hooks are quickly revolved in front of the thread to be separated, only the lat-- ter will be engaged and moved against the thread feeler, whereby the latter is actuated to release the coupling and the parts dependentthereon are stopped. V

One form of the present invention is illustratively exemplified in the accompanying drawing, wherein- Figure 1 is a side elevation, and Fig. 2 a plan view corresponding to Fig. 1.

In Figs. 1 and 2 a vertical plate a is fitted with two bearings which support a horizontal shaft 6. The shaft 5 is driven from the shaft J by means of bevel gears z". The shaft J extends parallel to the threaded spindle 7L (hereinafter referred to) and is provided with the belt pulley y. By means of a releasable coupling 0 the shaft 6 engages with another shaft d. The bevel gear wheel c", mounted on the shaft J, revolves with the latter and also moves along the same, corresponding to the motlon of the plate a.

To this end, the plate a is provided with a projecting arm a having a bifurcated end a which engages the grooved hub 2' of the gear wheel 2" mounted on the shaft J, and the said wheel 6 has a key 2' projecting into a longitudinal groove 7" in the shaft J. By the arrangement described,the gear wheel 2" on shaft J will move with the plate a and will also be capable of revolving. By means of bevel gears 70 the movement of the shaft (Z is communicated to a vertical shaftc which carries a disk f. This disk is provided at its circumference with a series of hooks f, f f By means of the bevel gears w and toothed wheels to the rotation of shaft 6 is transmitted to a nut g which engages with the fixed threaded spindle h. This nut g carries the vertical plate a; and it will be not-ed that by turning the nut g the plate a and all parts afiixed thereto-are caused to travel in line with the axis of the spindle it. lVhile in motion the plate a is prevented from rotating withthe nut g by means of a fixed rod on which passes through a hole in a. The two halves of the releasable coupling 0 are kept apart by means of a spring 0. In the drawing the coupling is shown in its operative position, its righthand half being kept in position by means of a lever 72. This lever 72 is provided with a small roller r, which is supported by one end a of another lever 8 whenever the clutch is made to grip. The lever s is pivoted to the arm 25, fixed on the plate a and is kept in a vertical position by means of a spring a and a suitably arranged stop. The lever s is provided on both sides of the disk f with Ellis 8 and s.

C is the warp-beam.

The row of threads of which some are to be separated by means of my improved apparatus is arranged between two sets of jaws at A and B, but so that B will allow the threads to pass easily.

The operation and application of the invention is as follows :After the coupling 0 is engaged, the shaft 6 drives shaft (Z, and by means of the bevel gears the shaft 6 and disk 7' are rotated. The shaft 6, by

means of the beveled gears 10 and toothed wheels 1.), drives the nut g. The gear wheels are so dimensioned that the motion of the plate a with all its parts is a comparatively slow one along spindle it. If now, while the disk 7 is rotating, it comes into contact with one of the threads, which are positioned between A and B, this thread is caught by one of the hooks f, P, or f, is drawn out of the plane of the row of threads and taken around until it strikes the pins a and s of lever s. The latter is thus caused to swing about its pivot on the arm 6. As a result, the roller 9 is disengaged from s, whereupon the lever 72 is free to move. The spring 0 disengages the coupling 0 whereupon the shaft (Z and the remainder of the mechanism cease to ro tate. The thread thus separated may now be further acted upon by the threading and by the selecting and separating mechanism above mentioned, so that the said thread is engaged by a hooked needle and threaded into and through the eye of a heddle, which has been selected and separated from a series of heddles. Owing to the fact that the nut g is driven from the shaft 6, the nut 9 comes to a standstill immediately on the coupling 0 being released. In order that another thread may be separated the lever p may be returned to its working position, either by hand, or automatically. The spring 8 will cause lever s to return to its vertical position and the roller 1 will once more be in contact with 3'. The coupling a is in engagement and the operation may be repeated as described. If the gearing is so designed that for a comparatively high speed of the hooks f, f 7, a slow speed of mechanism along the spindle it results, it will be impossible for two or more threads to get caught behind one and the same hook.

After having described the nature of my invention what I claim as new and desire to secure by Letters Patent is: r

1. In a device of the character described,

the combination of a plurality of revolubly mounted hooks arranged in an annular series, means for revolving said hooks, means for advancing said hooks in a rectilinear path, a releasable coupling between said last named means and said hook, and a thread feeler adapted to release said coupling at a predetermined time.

2. In a device of the character described, the combination of driving means having a releasable coupling, a round rotatable disk having a plurality of hooks arranged about its periphery, a thread feeler having pins projecting above and below said disk, means connected with said thread feeler for releasing said coupling, and means for moving said several members in a rectilinear path against the row of threads, whereby during said last mentioned operation only the foremost thread of the row is engaged by one of said hooks and moved against said thread feeler to displace the latter and release said coupling and thereby stop the parts dependent on said coupling.

3. In a device of the character described, the combination of driving means having a releasable coupling, a round rotatable disk having a plurality of hooks arranged about its periphery, a thread feeler having pins projecting above and below said disk, means connected with said thread feeler for releasing said coupling, a frame for supporting said several members, a nut carried by said frame, a threaded spindle on which said nut is adapted to travel, a driving shaft adapted to drive said spindle through said coupling, whereby when said coupling is closed the nut is revolved, the members carried by said frame are fed along said spindle against the row of threads, the foremost thread of the row being engaged by one of said hooks and moved against said thread feeler, the latter being actuated to release said coupling and stop the parts dependent thereon.

l. In a device of the character described, the combination of driving means having a releasable coupling, a round rotatable disk having a plurality of hooks arranged about its periphery, a thread feeler having pins projecting above and below said disk, a coupling lever adapted to hold said coupling in coupled position, a frame for supporting said several members, a nut carried by said frame, a threaded spindle on which said nut is revoluble, a driving shaft adapted to drive said spindle through said coupling, whereby when said coupling is closed the nut is revolved and the frame and parts supported thereby are carried against said row of threads, the foremost thread of the row be ing engaged by one of said hooks and moved against said thread feeler, the latter being actuated to release said coupling lever to release the coupling itself and stop the parts dependent thereon.

5. In a device for separating threads singly and in succession from a number of threads arranged in a row, the combination of a suitably driven and automatically disengaging clutch gear; a number of hooks arranged and rotating in a circle; a threadfeeler which is operated by the thread to be separated and thus alloW the coupling to be released; a suitably arranged gear for the transport of the whole of the device to- Ward the row of threads; all these parts to be so arranged, that upon the sloW approaching of this device toward the row of threads only one of the latter is caught by one of the hooks and taken around against the feeler, whereupon the latter is made to release the coupling and thus allows the Whole of the mechanism to come to a standstill.

OTTO VON MEYENBURG. Witnesses:

CARL CUBLER, AUoUsT Rinses.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

